Information for Strong-Motion Station
Ontario - 5-story Hospital
CGS - CSMIP Station 23416
Earthquakes recorded by this station
(Station Photograph - click to enlarge)(Sensor Layout - click to see PDF File)
Latitude 34.0322 N
Longitude 117.6082 W
Elevation (m) 250
Site Geology Alluvium
Vs30 (m/sec) 386 (measured)
Site Class D
Remarks/Notes Site information sources
No. of Stories above/below ground5/partial
Plan ShapeRectangular (with irregularities)
Base Dimensions396 ft x 291 ft
Typical Floor Dimensions396 ft x 291 ft
Design Date2006
Instrumentation2010, 15 accelerometers on 5 levels and 3 relative displacement sensors on 3 levels, and 3 free-field.
Vertical Load Carrying SystemConcrete over steel deck supported by steel beams and columns.
Lateral Force Resisting SystemSteel buckling restrained braced frames distributed in both directions, and concrete shear walls at basement level.
Foundation TypeContinuous concrete footings at perimeter and isolated concrete footings at interior steel columns.
RemarksThe building design conforms to the 2001 CBC. Funding for instrumentation was provided by the owner as required by OSHPD. CSMIP provided assistance in instrumentation.